OESA-2026-2949 tomcat security update

Tomcat is the servlet container that is used in the official Reference Implementation for the Java Servlet and JavaServer Pages technologies. The Java Servlet and JavaServer Pages specifications are developed by Sun under the Java Community Process. Security Fixes: Improper Neutralization of...

golang.org/x/crypto/ssh/knownhosts: golang: golang.org/x/crypto/ssh/knownhosts: Revocation bypass via unchecked SignatureKey

A flaw was found in golang.org/x/crypto/ssh/knownhosts. This vulnerability occurs because the system did not correctly check for the revocation status of a SignatureKey belonging to a Certificate Authority CA. A remote attacker could potentially exploit this by presenting a revoked key, leading t...

CVE-2026-59818

A flaw was found in etcd, a distributed key-value store. When etcd is configured to use separate listeners for HTTP and gRPC client endpoints, the Certificate Revocation List CRL is not properly enforced on the gRPC listener. This oversight allows a client with a revoked certificate to successful...

golang.org/x/crypto/ssh/knownhosts: golang: golang.org/x/crypto/ssh/knownhosts: Revocation bypass via unchecked SignatureKey

A flaw was found in golang.org/x/crypto/ssh/knownhosts. This vulnerability occurs because the system did not correctly check for the revocation status of a SignatureKey belonging to a Certificate Authority CA. A remote attacker could potentially exploit this by presenting a revoked key, leading t...

CVE-2026-53961: Insufficient Verification of Data Authenticity

Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, the AWS SES bounce webhook at POST /webhooks/aws verified that SNS messages were signed by Amazon but did not bind them to trusted TopicArn values, allowing any AWS account holder to publish...

PT-2026-56884

Name of the Vulnerable Software and Affected Versions Open WebUI versions 0.9.0 through 0.9.x Description When Redis is configured, the authentication process for Socket.IO connect, user-join, join-channels, join-note, and the terminal websocket first-message uses the decode token function withou...

CVE-2026-59818

etcd is a distributed key-value store for the data of a distributed system. Prior to 3.5.32 and 3.6.13, when etcd is configured with --listen-client-http-urls to split HTTP and gRPC client endpoints onto separate listeners, the --client-crl-file Certificate Revocation List is not enforced on the...

DEBIAN-CVE-2026-59818

etcd is a distributed key-value store for the data of a distributed system. Prior to 3.5.32 and 3.6.13, when etcd is configured with --listen-client-http-urls to split HTTP and gRPC client endpoints onto separate listeners, the --client-crl-file Certificate Revocation List is not enforced on the...

AZL-92141 CVE-2026-59818 affecting package etcd for versions less than 3.5.33-1

etcd is a distributed key-value store for the data of a distributed system. Prior to 3.5.32 and 3.6.13, when etcd is configured with --listen-client-http-urls to split HTTP and gRPC client endpoints onto separate listeners, the --client-crl-file Certificate Revocation List is not enforced on the...

CVE-2026-59818

etcd is a distributed key-value store for the data of a distributed system. Prior to 3.5.32 and 3.6.13, when etcd is configured with --listen-client-http-urls to split HTTP and gRPC client endpoints onto separate listeners, the --client-crl-file Certificate Revocation List is not enforced on the...

UBUNTU-CVE-2026-59818

etcd is a distributed key-value store for the data of a distributed system. Prior to 3.5.32 and 3.6.13, when etcd is configured with --listen-client-http-urls to split HTTP and gRPC client endpoints onto separate listeners, the --client-crl-file Certificate Revocation List is not enforced on the...

CVE-2026-59818

etcd is a distributed key-value store for the data of a distributed system. Prior to 3.5.32 and 3.6.13, when etcd is configured with --listen-client-http-urls to split HTTP and gRPC client endpoints onto separate listeners, the --client-crl-file Certificate Revocation List is not enforced on the...

Improper Certificate Validation

Overview Affected versions of this package are vulnerable to Improper Certificate Validation due to improper enforcement of the Certificate Revocation List on the gRPC listener when separate listeners are configured for HTTP and gRPC client endpoints. An attacker can gain unauthorized access and...

Improper Certificate Validation

Overview Affected versions of this package are vulnerable to Improper Certificate Validation due to improper enforcement of the Certificate Revocation List on the gRPC listener when separate listeners are configured for HTTP and gRPC client endpoints. An attacker can gain unauthorized access and...

Improper Certificate Validation

Overview Affected versions of this package are vulnerable to Improper Certificate Validation due to improper enforcement of the Certificate Revocation List on the gRPC listener when separate listeners are configured for HTTP and gRPC client endpoints. An attacker can gain unauthorized access and...

Improper Certificate Validation

Overview Affected versions of this package are vulnerable to Improper Certificate Validation due to improper enforcement of the Certificate Revocation List on the gRPC listener when separate listeners are configured for HTTP and gRPC client endpoints. An attacker can gain unauthorized access and...

EUVD-2026-42426

etcd is a distributed key-value store for the data of a distributed system. Prior to 3.5.32 and 3.6.13, when etcd is configured with --listen-client-http-urls to split HTTP and gRPC client endpoints onto separate listeners, the --client-crl-file Certificate Revocation List is not enforced on the...

Improper Certificate Validation

Overview Affected versions of this package are vulnerable to Improper Certificate Validation due to improper enforcement of the Certificate Revocation List on the gRPC listener when separate listeners are configured for HTTP and gRPC client endpoints. An attacker can gain unauthorized access and...

CVE-2026-59818

CVE-2026-59818 affects etcd (distributed key-value store). Prior to versions 3.5.32 and 3.6.13, when etcd uses separate HTTP and gRPC client listeners, the --client-crl-file CRL is not enforced on the gRPC listener, letting a revoked-certificate client authenticate over gRPC. The issue is fixed i...

CVE-2026-59818 etcd: gRPC client listener does not enforce `--client-crl-file` certificate revocation

etcd is a distributed key-value store for the data of a distributed system. Prior to 3.5.32 and 3.6.13, when etcd is configured with --listen-client-http-urls to split HTTP and gRPC client endpoints onto separate listeners, the --client-crl-file Certificate Revocation List is not enforced on the...